ar0100t0001u

Inspecting engine for dust damage

Type ar · topic 01.00 · version 0100 · 2006-02-23

Applies to: ENGINE 904.953 in model NMB436.330

Where it sits

Function group 1 Engine › 01 Complete engine, crankcase ventilation, cylinder head, crankcase › 01.00 General — Series 436 (models 330) · Series 904 (models 953)

EinPAS 15 Engine › 15.15 Combustion engine, complete/engine housing/crank assembly › 15.15.15 internal combustion engine, complete — Series 436 (models 330) · Series 904 (models 953)

AR01.00-T-0001U

Inspecting engine for dust damage

10.2.06

ENGINE 904.953 in model NMB436.330

Removing

1

Remove piston

AR03.10-T-7021U

Checking

2

Inspect intake passage between air filter and engine for dust deposits

Severe dust deposits in elbows of intake pipes and
hoses are a reliable indication of dust damage.

3

Check piston and cylinder barrels for wear (dust damage)

The stem contact patterns of pistons and honing patterns of cylinder barrel indicate damage caused by increased presence of dust. If wear is found:

Machine crankcase

AR01.40-T-9203U

Install new piston

AR03.10-T-7021U

Notes for assessing wear to cylinder wall in the case of dust damage

AH01.40-N-0001-01A

Notes for assessing piston wear from dust/particulate damage

AH03.10-N-0001-01A

Referenced documents